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Finding the Fourth Proportional to 800,160.72, 1,200,832.92 and 644,271.36

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Solution

The fourth proportional to 800,160.72, 1,200,832.92 and 644,271.36 is: 966,883.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,160.72 : 1,200,832.92 = 644,271.36 : x
  2. Step 2: Convert to fraction form
    800,160.72/1,200,832.92 = 644,271.36/x
  3. Step 3: Cross multiply
    800,160.72x = 1,200,832.92 × 644,271.36
  4. Step 4: Simplify right side
    800,160.72x = 773,662,258,501.17
  5. Step 5: Solve for x
    x = 773,662,258,501.17/800,160.72
  6. Step 6: Final answer
    x = 966,883.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.